/*
* Copyright 2008 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
package com.sun.lwuit.layouts;
import com.sun.lwuit.Component;
import com.sun.lwuit.Container;
import com.sun.lwuit.Form;
import com.sun.lwuit.geom.Dimension;
import java.util.*;
/**
* GroupLayout is a LayoutManager that hierarchically groups components to
* achieve common, and not so common, layouts. Grouping is done by instances
* of the Group class. GroupLayout supports two types of groups:
* <table>
* <tr><td valign=top>Sequential:<td>A sequential group positions its child
* elements sequentially, one after another.
* <tr><td valign=top>Parallel:<td>A parallel group positions its child
* elements in the same space on top of each other. Parallel groups
* can also align the child elements along their baseline.
* </table>
* Each Group can contain any number of child groups, Components or gaps.
* GroupLayout treats each axis independently. That is, there is a group
* representing the horizontal axis, and a separate group representing the
* vertical axis. The horizontal group is responsible for setting the x
* and width of its contents, where as the vertical group is responsible for
* setting the y and height of its contents.
* <p>
* The following code builds a simple layout consisting of two labels in
* one column, followed by two textfields in the next column:
* <pre>
* JComponent panel = ...;
* GroupLayout layout = new GroupLayout(panel);
* panel.setLayout(layout);
* layout.setAutocreateGaps(true);
* layout.setAutocreateContainerGaps(true);
* GroupLayout.SequentialGroup hGroup = layout.createSequentialGroup();
* hGroup.add(layout.createParallelGroup().add(label1).add(label2)).
* add(layout.createParallelGroup().add(tf1).add(tf2));
* layout.setHorizontalGroup(hGroup);
* GroupLayout.SequentialGroup vGroup = layout.createSequentialGroup();
* vGroup.add(layout.createParallelGroup(GroupLayout.BASELINE).add(label1).add(tf1)).
* add(layout.createParallelGroup(GroupLayout.BASELINE).add(label2).add(tf2));
* layout.setVerticalGroup(vGroup);
* </pre>
* <p>
* This layout consists of the following:
* <ul><li>The horizontal axis consists of a sequential group containing two
* parallel groups. The first parallel group consists of the labels,
* with the second parallel group consisting of the text fields.
* <li>The vertical axis similarly consists of a sequential group
* containing two parallel groups. The parallel groups align their
* contents along the baseline. The first parallel group consists
* of the first label and text field, and the second group consists
* of the second label and text field.
* </ul>
* There are a couple of things to notice in this code:
* <ul>
* <li>You need not explicitly add the components to the container, this
* is indirectly done by using one of the <code>add</code> methods.
* <li>The various <code>add</code> methods of <code>Groups</code> return
* themselves. This allows for easy chaining of invocations. For
* example, <code>group.add(label1).add(label2);</code> is equivalent to
* <code>group.add(label1);group.add(label2);</code>.
* <li>There are no public constructors for the Groups, instead
* use the create methods of <code>GroupLayout</code>.
* </ul>
* GroupLayout offer the ability to automatically insert the appropriate gap
* between components. This can be turned on using the
* <code>setAutocreateGaps()</code> method. Similarly you can use
* the <code>setAutocreateContainerGaps()</code> method to insert gaps
* between the components and the container.
*
* @version $Revision: 1.25 $
* @author Tomas Pavek
* @author Jan Stola
* @author Scott Violet
* @author Shai Almog
*/
public class GroupLayout extends Layout {
/**
* Compass-direction North (up).
*/
public static final int NORTH = 1;
/**
* Compass-direction east (right).
*/
public static final int EAST = 3;
/**
* Compass-direction south (down).
*/
public static final int SOUTH = 5;
/**
* Compass-direction west (left).
*/
public static final int WEST = 7;
// Used in size calculations
private static final int MIN_SIZE = 0;
private static final int PREF_SIZE = 1;
private static final int MAX_SIZE = 2;
// Used by prepare, indicates min, pref or max isn't going to be used.
private static final int SPECIFIC_SIZE = 3;
private static final int UNSET = Integer.MIN_VALUE;
/**
* Possible argument when linking sizes of components. Specifies the
* the two component should share the same size along the horizontal
* axis.
*
* @see #linkSize(Component[], int)
*/
public static final int HORIZONTAL = 1;
/**
* Possible argument when linking sizes of components. Specifies the
* the two component should share the same size along the vertical
* axis.
*
* @see #linkSize(Component[],int)
*/
public static final int VERTICAL = 2;
private static final int NO_ALIGNMENT = 0;
/**
* Possible alignment type. Indicates the elements should be
* aligned to the origin. For the horizontal axis with a left to
* right orientation this means aligned to the left.
*
* @see #createParallelGroup(int)
*/
public static final int LEADING = 1;
/**
* Possible alignment type. Indicates the elements should be
* aligned to the end. For the horizontal axis with a left to
* right orientation this means aligned to the right.
*
* @see #createParallelGroup(int)
*/
public static final int TRAILING = 2;
/**
* Possible alignment type. Indicates the elements should centered in
* the spaced provided.
*
* @see #createParallelGroup(int)
*/
public static final int CENTER = 4;
/**
* Possible alignment type. Indicates the elements should aligned along
* their baseline.
*
* @see #createParallelGroup(int)
*/
public static final int BASELINE = 3;
/**
* Possible value for the add methods that takes a Component.
* Indicates the size from the component should be used.
*/
public static final int DEFAULT_SIZE = -1;
/**
* Possible value for the add methods that takes a Component.
* Indicates the preferred size should be used.
*/
public static final int PREFERRED_SIZE = -2;
// Whether or not we automatically try and create the preferred
// padding between components.
private boolean autocreatePadding;
// Whether or not we automatically try and create the preferred
// padding between contai
LWUIT 开发指南第一章里的 Hello World 源代码 （403个子文件） 
Form.class 40KB Form.class 37KB HTMLComponent.class 35KB Component.class 34KB DefaultLookAndFeel.class 32KB List.class 32KB Component.class 31KB LWUITImplementation.class 30KB HTMLComponent.class 30KB LWUITImplementation.class 28KB List.class 27KB GameCanvasImplementation.class 27KB Display.class 26KB DefaultLookAndFeel.class 26KB GameCanvasImplementation.class 25KB TextField.class 24KB Display.class 23KB Resources.class 23KB TextField.class 22KB Resources.class 20KB GroupLayout.class 20KB Container.class 19KB GroupLayout.class 18KB Element.class 17KB UIManager.class 17KB TextArea.class 17KB Transition3D.class 16KB Container.class 16KB Dialog.class 16KB Element.class 16KB Style.class 16KB Dialog.class 15KB UIManager.class 15KB VirtualKeyboard.class 15KB Transition3D.class 15KB TextArea.class 15KB Style.class 14KB VirtualKeyboard.class 14KB Border.class 14KB Image.class 14KB Form$MenuBar.class 13KB Parser.class 13KB GroupLayout$SequentialGroup.class 13KB Image.class 12KB CommonTransitions.class 12KB Border.class 12KB Form$MenuBar.class 12KB LookAndFeel.class 11KB TableLayout.class 11KB Spinner.class 11KB TabbedPane.class 11KB LookAndFeel.class 11KB Graphics.class 11KB CommonTransitions.class 11KB GroupLayout$SequentialGroup.class 11KB TabbedPane.class 10KB Parser.class 10KB Graphics.class 10KB Spinner.class 10KB TableLayout.class 9KB IndexedImage.class 9KB HTMLForm.class 9KB StaticAnimation.class 9KB Calendar.class 8KB Calendar.class 8KB Table.class 8KB Calendar$MonthView.class 8KB IndexedImage.class 8KB HTMLForm.class 8KB Table.class 8KB ComboBox.class 8KB Label.class 8KB EventDispatcher.class 8KB Button.class 7KB Calendar$MonthView.class 7KB StaticAnimation.class 7KB ComboBox.class 7KB Label.class 7KB Button.class 7KB Log.class 7KB Tree.class 7KB SVGImplementation.class 7KB Log.class 6KB Tree.class 6KB CustomFont.class 6KB EventDispatcher.class 6KB SVGImplementation.class 6KB GroupLayout$AutopaddingSpring.class 6KB BorderLayout.class 6KB GroupLayout$ParallelGroup.class 6KB HTMLFont.class 6KB GroupLayout$AutopaddingSpring.class 6KB GroupLayout$BaselineGroup.class 6KB CustomFont.class 6KB Font.class 6KB Font.class 6KB GroupLayout$ParallelGroup.class 6KB SVGImage.class 5KB BorderLayout.class 5KB SVGImage.class 5KB共 403 条
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